Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated miniature steel pipe pile post-grouting composite foundation and construction method thereof
The invention belongs to the technical field of composite foundations, discloses a prefabricated micro steel pipe pile post-grouting composite foundation and a construction method thereof, and aims to solve the problem that the bearing capacity of an existing micro steel pipe pile composite foundation is poor due to the fact that the strength of a core area is not high. The prefabricated miniature steel pipe pile comprises a prefabricated miniature steel pipe pile body implanted into a pile hole in a stratum or directly implanted into the stratum, the prefabricated miniature steel pipe pile body comprises a seamless steel pipe, a plurality of guniting openings are formed in the circumferential wall of the seamless steel pipe, and a grouting floral tube is inserted into the seamless steel pipe; a prefabricated fine aggregate concrete layer is arranged between the grouting floral tube and the seamless steel tube, and a jet flow channel used for communicating a grouting hole in the grouting floral tube with a guniting opening in the seamless steel tube is formed in the prefabricated fine aggregate concrete layer. And concrete layers are poured in the grouting floral tube and between the grouting floral tube and the soil body of the stratum through jet flow channels.
本发明属于复合地基技术领域，公开了一种预制微型钢管桩后注浆复合地基及其施工方法，为了解决现有微型钢管桩复合地基由于核心区强度不高而导致微型钢管桩复合地基承载力差的问题。本发明包括植入在地层中桩孔内的预制微型钢管桩或者直接植入在地层中的预制微型钢管桩，所述预制微型钢管桩包括无缝钢管，所述无缝钢管的圆周壁上开设有若干喷浆口，所述无缝钢管内插入有注浆花管，所述注浆花管与所述无缝钢管之间具有预制细石混凝土层，并且预制细石混凝土层中形成有用于连通注浆花管上的注浆孔与无缝钢管上的喷浆口的喷流通道，所述注浆花管内部、注浆花管与地层的土体之间通过喷流通道均浇筑有混凝土层。
Prefabricated miniature steel pipe pile post-grouting composite foundation and construction method thereof
The invention belongs to the technical field of composite foundations, discloses a prefabricated micro steel pipe pile post-grouting composite foundation and a construction method thereof, and aims to solve the problem that the bearing capacity of an existing micro steel pipe pile composite foundation is poor due to the fact that the strength of a core area is not high. The prefabricated miniature steel pipe pile comprises a prefabricated miniature steel pipe pile body implanted into a pile hole in a stratum or directly implanted into the stratum, the prefabricated miniature steel pipe pile body comprises a seamless steel pipe, a plurality of guniting openings are formed in the circumferential wall of the seamless steel pipe, and a grouting floral tube is inserted into the seamless steel pipe; a prefabricated fine aggregate concrete layer is arranged between the grouting floral tube and the seamless steel tube, and a jet flow channel used for communicating a grouting hole in the grouting floral tube with a guniting opening in the seamless steel tube is formed in the prefabricated fine aggregate concrete layer. And concrete layers are poured in the grouting floral tube and between the grouting floral tube and the soil body of the stratum through jet flow channels.
本发明属于复合地基技术领域，公开了一种预制微型钢管桩后注浆复合地基及其施工方法，为了解决现有微型钢管桩复合地基由于核心区强度不高而导致微型钢管桩复合地基承载力差的问题。本发明包括植入在地层中桩孔内的预制微型钢管桩或者直接植入在地层中的预制微型钢管桩，所述预制微型钢管桩包括无缝钢管，所述无缝钢管的圆周壁上开设有若干喷浆口，所述无缝钢管内插入有注浆花管，所述注浆花管与所述无缝钢管之间具有预制细石混凝土层，并且预制细石混凝土层中形成有用于连通注浆花管上的注浆孔与无缝钢管上的喷浆口的喷流通道，所述注浆花管内部、注浆花管与地层的土体之间通过喷流通道均浇筑有混凝土层。
Prefabricated miniature steel pipe pile post-grouting composite foundation and construction method thereof
一种预制微型钢管桩后注浆复合地基及其施工方法
XUE PENG (Autor:in) / PENG TAO (Autor:in) / REN DONGXING (Autor:in) / CHEN LONGFEI (Autor:in) / HE FANMIN (Autor:in) / LI YAN (Autor:in)
17.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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